@misc{1162236,
  author = {Lucy Hagan and W C Martin},
  title = {Bibliography on atomic energy levels and spectra, July 1968 through June 1971:},
  year = {1972},
  month = {1972-01-01 05:01:00},
  publisher = {, National Institute of Standards and Technology, Gaithersburg, MD},
  doi = {https://doi.org/10.6028/NBS.SP.363},
  language = {en},
}